.he {
    display: flex;
    width: 90%;
    height: 60px;
    margin-top: 10px;
    margin-left: 10px;
}

.heContent {
    background-color: rgb(247, 249, 255);
    margin-left: 20px;
    border: 0;
    padding: 1px 15px 5px 15px;
    height: 40px;
    margin-top: 5px;
    line-height: 40px;
    font-size: 16px;
    border-bottom-right-radius: 10px;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    text-align: center;
}

.me {
    display: flex;
    width: 90%;
    height: 60px;
    float: right;
    margin-top: 10px;
    margin-right: 10px;
    justify-content: flex-end;
}

.meContent {
    background-color: rgb(67, 177, 93);
    height: 40px;
    border-top-right-radius: 10px;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    margin-right: 20px;
    font-size: 16px;
    line-height: 40px;
    color: white;
    text-align: center;
    margin-top: 10px;
    border: 0;
    padding: 1px 15px 5px 15px;
}

.chat {
    overflow: scroll;
    height: 88.5vh;
    width: 100%;
    margin-top: 12%;
}

.expression {
    top: 63%;
    position: fixed;
    height: 260px;
    width: 260px;
    background-color: rgb(243, 242, 242);
    border-radius: 10px;
}

.expression1 {
    width: 0;
    height: 0;
    border-left: 20px solid transparent;
    /* 左侧透明边框 */
    border-right: 20px solid transparent;
    /* 右侧透明边框 */
    border-bottom: 40px solid rgb(243, 242, 242);
    /* 底部红色边框 */
    transform: rotate(180deg);
    /* 将三角形倒置 */
    margin-left: 6%;
}

.RecentlyUsed {
    margin-top: 2%;
    margin-left: 4%;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    grid-gap: 4px;
}

.Allexpressions {
    margin-top: 2%;
    margin-left: 4%;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    grid-gap: 4px;
}